How can I fix the blurry bar across the top of my iPhone 13 pro max

Follow these steps, testing after each step:

• iPhone Screen Not Working.
• Turn iPhone on or off.
• Force Restart iPhone.

If that didn’t work, then I recommend service.

Service Checklist:

• iPhone service pricing.
• Check AppleCare Coverage.
• Get your iPhone ready for service.

Click ▶︎ Start a Service Request. ⚛️

Need more help?

• Call Apple Support at 1-800-APLCARE. 📞
• International Support. 🌐
• Contact Apple Support. 📝
• Chat using Messages. 💬

Click ▶︎ Check Repair Status. 🔧

It sounds like your screen needs service. Make sure to get it serviced at Apple self or at a authorized service provider, otherwise your FaceID might be broken when your screen is repaired with non genuine apple parts